Sql 更新Postgres表中的日期范围
我有一张有日期的桌子:Sql 更新Postgres表中的日期范围,sql,postgresql,date,Sql,Postgresql,Date,我有一张有日期的桌子: select id,date date_ranges where range_id = 1; 1 2016-04-12 2 2016-04-13 3 2016-04-14 我还有一个数组: 例如: array('2016-04-11','2016-04-12','2016-04-13','2016-04-14','2016-04-15') 或 如何在不更改现有表值的情况下将新值从数组插入到表中? 若我有第二个数组,如何从表中删除值2016-04-12 帮助plz,我需
select id,date date_ranges where range_id = 1;
1 2016-04-12
2 2016-04-13
3 2016-04-14
我还有一个数组:
例如:
array('2016-04-11','2016-04-12','2016-04-13','2016-04-14','2016-04-15')
或
如何在不更改现有表值的情况下将新值从数组插入到表中?
若我有第二个数组,如何从表中删除值2016-04-12
帮助plz,我需要一个查询)从提供适当的信息开始:Postgres版本、表定义。
array('2016-04-13','2016-04-14','2016-04-15')
WITH current_values AS (
SELECT generate_series('2016-04-13'::DATE, '2016-04-17'::DATE, '1 day')::DATE AS date
),
deleted_values AS (
DELETE FROM date_ranges WHERE date NOT IN (SELECT * FROM current_values) RETURNING id
)
INSERT INTO date_ranges ("date", range_id)
WITH new_values AS (
SELECT new."date"
FROM current_values AS new
LEFT JOIN date_ranges AS old
ON old."date" = new."date"
WHERE old.id IS NULL
)
SELECT date, 1 FROM new_values;